Home / 281,098,117.80-421,087,304.70-247,431,148.20

Finding the Fourth Proportional to 281,098,117.80, 421,087,304.70 and 247,431,148.20

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Solution

The fourth proportional to 281,098,117.80, 421,087,304.70 and 247,431,148.20 is: 370,653,905.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,098,117.80 : 421,087,304.70 = 247,431,148.20 : x
  2. Step 2: Convert to fraction form
    281,098,117.80/421,087,304.70 = 247,431,148.20/x
  3. Step 3: Cross multiply
    281,098,117.80x = 421,087,304.70 × 247,431,148.20
  4. Step 4: Simplify right side
    281,098,117.80x = 104,190,115,294,364,256
  5. Step 5: Solve for x
    x = 104,190,115,294,364,256/281,098,117.80
  6. Step 6: Final answer
    x = 370,653,905.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.